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Atomic Model Review Chemistry Mr. Wignall.

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Presentation on theme: "Atomic Model Review Chemistry Mr. Wignall."— Presentation transcript:

1 Atomic Model Review Chemistry Mr. Wignall

2 List the 6 scientists in order of their discoveries.

3 If you are stuck, start sharing answers with the people around you.

4 Ready for the answer?

5 Democritus John Dalton JJ Thomson Ernest Rutherford Neils Bohr James Chadwick

6 Now, briefly describe what each scientist discovered

7 Democritus John Dalton JJ Thomson Ernest Rutherford Neils Bohr James Chadwick

8 Ready for the answer?

9 Democritus John Dalton JJ Thomson Ernest Rutherford Neils Bohr
Matter was made of little, indivisible spheres called “atomos” John Dalton “Atomic theory”—diff elements have diff masses, properties, etc JJ Thomson Discovered the electron. “plum pudding” model Ernest Rutherford Discovered the nucleus and it was positively charged. Electrons orbited around it Neils Bohr Only certain orbits were allowed. No “in between” orbits (quantized) James Chadwick Discovered the neutron (no charge) in the nucleus

10 Draw what an atom looks like, labeling the charge on each subatomic particle (-, 0, +)

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